MIXTURE OF MAKING LIGHT CONCRETE AND LIGHT CONCRETE Russian patent published in 2010 - IPC C04B28/18 C04B111/40 

FIELD: chemistry.

SUBSTANCE: invention relates to construction and construction industry and can be used in production of hydraulic mineral composite binding materials, variety of dry construction mixtures, for making light concrete and heat insulation articles for making building enclosures. The mixture for making light concrete contains the following in pts. wt: 40-50 composite hydraulic binder - pearlite-limestone-gypsum mixture of the following composition in pts. wt : expanded pearlite with specific surface area S_spec=5500-7500 cm²/g, particle size of 10-20 mcm 70-80, quick lime S_spec=3500-4500 cm²/g, particle size of 30-60 mcm, hemihydrate gypsum S_spec=3500-4500 cm²/g, particle size of 30-60 mcm 2-6, and 40-60 aggregate-crushed expanded pealite. Light concrete made from the said mixture also contains the following in pts. wt: Hardening accelerator - sulphate or chloride of an alkali or alkali-earth metal 0.33 and water with aqueous/solid phase ratio equal to 0.9-1.1.

EFFECT: higher efficiency of environmentally clean articles for constructing heat-saving building enclosures, including for high seismic activity conditions.

2 cl, 6 tbl, 1 dwg